Chrysanthemum plant named &#39;dlfhola6&#39;

ABSTRACT

A new and distinct cultivar of  Chrysanthemum  plant named ‘DLFHOLA6’, characterized by its upright plant habit; vigorous growth habit; dark green-colored leaves; uniform and freely flowering habit; strong upright flowering stems; anemone-type inflorescences with bright orange yellow-colored ray florets; resistance to Fusarium; relative tolerance to low and high production temperatures; and excellent postproduction longevity.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Varieties of Chrysanthemum Plants.

Inventor/Applicant: Arie Gerard Post.

Filed: Aug. 6, 2020

Ser. No.: 63/062,375

Inventor/Applicant hereby claims the benefit of this provisional U.S. patent application.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘DLFHOLA6’.

STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR/APPLICANT & ASSIGNEE

A Columbian Plant Breeder's Rights application for the instant plant was filed by the Assignee, Deliflor Royalties B. V. of Maasdijk, The Netherlands on Jul. 16, 2020. Foreign priority is not claimed to this application.

The Inventor/Applicant and Assignee assert that no publications nor advertisements relating to sales, offers for sale or public distribution occurred more than one year prior to the effective filing date of this application. Any information about the claimed plant would have been obtained from a direct or indirect disclosure from the Inventor/Applicant and/or the Assignee. Inventor/Applicant and Assignee claim a prior art exception under 35 U.S.C. 102(b)(1) for disclosure and/or sales prior to the filing date but less than one year prior to the effective filing date.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Chrysanthemum plant, botanically known as Chrysanthemum x morifolium, typically grown as a cut flower Chrysanthemum and hereinafter referred to by the name ‘DLFHOLA6’.

The new Chrysanthemum plant is a product of a planned breeding program conducted by the Inventor in Maasdijk, The Netherlands. The objective of the breeding program is to create new cut flower Chrysanthemum plants with numerous attractive inflorescences.

The new Chrysanthemum plant originated from a cross-pollination in April, 2017 of a proprietary selection of Chrysanthemum x morifolium identified as code number db 56143, not patented, as the female, or seed, parent with a proprietary selection of Chrysanthemum x morifolium identified as code number db 91495, not patented, as the male, or pollen, parent. The new Chrysanthemum plant was discovered and selected as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Maasdijk, The Netherlands in February, 2018.

Asexual reproduction of the new Chrysanthemum plant by vegetative terminal cuttings since February, 2018 in a controlled greenhouse environment in Maasdijk, The Netherlands has shown that the unique features of this new Chrysanthemum plant are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

Plants of the new Chrysanthemum have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘DLFHOLA6’. These characteristics in combination distinguish ‘DLFHOLA6’ as a new and distinct Chrysanthemum plant:

-   -   1. Upright plant habit; vigorous growth habit.     -   2. Dark green-colored leaves.     -   3. Uniform and freely flowering habit.     -   4. Strong upright flowering stems.     -   5. Anemone-type inflorescences with bright orange yellow-colored         ray florets.     -   6. Resistant to Fusarium (Fusarium oxysporum).     -   7. Relatively tolerant to low and high production temperatures.     -   8. Excellent postproduction longevity.

Plants of the new Chrysanthemum differ primarily from plants of the female parent selection in ray floret color as ray florets of plants of the new Chrysanthemum are bright orange yellow in color whereas ray florets of plants of the female parent selection are white in color. In addition, ray florets apices of plants of the new Chrysanthemum are shallowly emarginate to close to obtuse whereas ray florets apices of plants of the female parent selection are rounded.

Plants of the new Chrysanthemum differ primarily from plants of the male parent selection in ray floret color as ray florets of plants of the new Chrysanthemum are bright orange yellow in color whereas ray florets of plants of the male parent selection are white in color. In addition, ray florets apices of plants of the new Chrysanthemum are shallowly emarginate to close to obtuse whereas ray florets apices of plants of the male parent selection are mammillate.

Plants of the new Chrysanthemum can be compared to plants of Chrysanthemum X morifolium ‘DLFAPPE6’, not patented. In side-by-side comparisons, plants of the new Chrysanthemum differ primarily from plants of ‘DLFAPPE6’ in ray floret color as ray florets of plants of the new Chrysanthemum are more orange than and not as yellow in color as ray florets of plants of ‘DLFAPPE6’. In addition, fully opened ray florets of plants of the new Chrysanthemum are mostly straight whereas fully opened ray florets of plants of ‘DLFAPPE6’ are incurved.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Chrysanthemum plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. The photograph on the first sheet (FIG. 1) comprises a side perspective view of a typical flowering stein of ‘DLFHOLA6’ grown as a spray-type cut flower. The photograph on the second sheet (FIG. 2) is a close-up view of upper (left) and lower (right) surfaces of typical leaves (bottom of photographic sheet) and inflorescences (top of photographic sheet).

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown during the autumn in ground beds in a glass-covered greenhouse in Maasdijk, The Netherlands and under cultural practices typical of commercial cut Chrysanthemum production. Plants were initially given long day/short night treatments followed by short day/long night treatments to induce flower initiation and development. During the production of the plants, day temperatures ranged from 18° C. to 25° C., night temperatures ranged from 20° C. to 22° C. and light levels averaged 8 klux. Plants were grown as single-stem spray-type plants and were ten weeks old when the photographs were taken and eleven weeks old when the description was taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘DLFHOLA6’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Chrysanthemum x morifolium identified as code number db             56143, not patented.         -   Male, or pollen, parent.—Proprietary selection of             Chrysanthemum x morifolium identified as code number db             91495, not patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About four days at             temperatures about 20° C.         -   Time to initiate roots, winter.—About six days at             temperatures about 20° C.         -   Time to produce a rooted young plant, summer.—About 13 days             at temperatures about 20° C.         -   Time to produce a rooted young plant, winter.—About 15 days             at temperatures about 20° C.         -   Root description.—Fine, fibrous; typically creamy white in             color, actual color of the roots is dependent on substrate             composition, water quality, fertilizers, substrate             temperature and physiological age of roots.         -   Rooting habit.—Freely branching, medium density. -   Plant description:     -   -   Plant and growth habit.—Herbaceous anemone-type cut flower             that is typically grown as a single stein spray-type;             upright plant habit; vigorous growth habit and rapid growth             rate.         -   Plant height, soil level to top of foliar plane.—About 68.3             cm.         -   Plant height, soil level to top of inflorescence             plane.—About 74.6 cm.         -   Plant (spray) diameter.—About 21.8 cm.         -   Flowering stein length.—About 67.3 cm.         -   Flowering stein diameter.—About 7.5 mm.         -   Flowering stein internode length.—About 2.1 cm.         -   Flowering stein strength.—Strong.         -   Flowering stein aspect.—Erect.         -   Flowering stein texture and luster.—Densely pubescent;             slightly glossy.         -   Flowering stein color, developing.—Close to 146D.         -   Flowering stein color, developed.—Close to 146B and 148B.         -   Leaf description.—Arrangement: Alternate; simple. Length:             About 13.5 cm. Width: About 8.6 cm. Shape, in overall             outline: Ovate to oblong. Apex: Abruptly acute, minute.             Base: Attenuate. Margin: Palmately lobed, coarsely crenate;             sinuses convergent with lobes slightly imbricate; sinuses             medium in depth to deep. Texture and luster, upper surface:             Densely pubescent, not rugose; moderately velvety; matte.             Texture and luster, lower surface: Densely pubescent,             prominent venation; slightly velvety; slightly glossy.             Venation pattern: Pinnate, reticulate. Color: Developing             leaves, upper surface: Close to 137C. Developing leaves,             lower surface: Close to 138B. Fully developed leaves, upper             surface: Close to NN137A to NN137B; venation, close to 147C.             Fully developed leaves, lower surface: Close to 147B;             venation, close to 148C. Petioles: Length: About 1.5 cm.             Diameter: About 4 mm by 4 mm. Strength: Moderately strong.             Texture and luster, upper and lower surfaces: Densely             pubescent; moderately glossy. Color, lower surface: Close to             146C; edges, close to 138B. Stipules: Quantity and             appearance: Two leafy stipules, opposite, at the petiole             attachment to the stein. Length: About 9 mm. Width: About             1.3 cm. Shape, in overall outline: Broadly obovate;             occasionally cleft with one to three shallow incisions             distally. Texture and luster, upper surface: Densely             pubescent; matte. Texture and luster, lower surface: Densely             pubescent; slightly glossy. Color, upper surface: Close to             NN137A to NN137B. Color, lower surface: Close to 147B. -   Inflorescence description:     -   -   Appearance.—Anemone-type inflorescence form with narrowly             obovate-shaped ray florets and tubular disc florets;             inflorescences borne perpendicular to peduncles and face             upright; ray and disc florets develop acropetally on a             capitulum.         -   Fragrance.—Faintly fragrant; typical of Chrysanthemums.         -   Flowering response.—Under natural conditions, plant flower             in the autumn/winter in the Northern Hemisphere; at other             times of the year, inflorescence initiation and development             can be induced under short day/long night conditions (at             least 13.5 hours of darkness); uniform flowering habit and             short response time, plants exposed to two weeks of long             day/short night conditions after planting followed by             photoinductive short day/long night conditions flower about             52 days later when grown as a spray-type.         -   Postproduction longevity.—Good postproduction longevity;             after a seven-day storage period, cut flowers will maintain             good color and substance for about two weeks in an interior             environment; inflorescences persistent.         -   Quantity of inflorescences.—Typically grown as a spray-type,             about 31 inflorescences develop per flowering stein.         -   Inflorescence size.—Diameter, grown as a spray-type: About             7.3 cm. Depth (height), grown as a spray-type: About 2.8 cm.             Disc diameter, grown as a spray-type: About 4.5 cm.         -   Receptacles.—Height: About 5 mm. Diameter: About 9 mm.             Shape: Flattened globular. Color: Close to 145B and 145C.         -   Inflorescence buds.—Height: About 1.7 cm. Diameter: About             1.5 cm. Shape: Broadly oblong. Texture and luster: Distally,             smooth and glabrous; proximally, moderately pubescent;             slightly glossy. Color: Developing involucral bracts, close             to 137C, 138B and 138C; developing ray florets, close to             164C.         -   Ray florets.—Quantity and arrangement: About 30 arranged in             about two whorls. Length: About 3.6 cm. Width: About 1.2 cm.             Shape: Narrowly obovate; moderately concave to straight and             flat with development; slightly carinate. Apex: Shallowly             emarginate to close to obtuse. Base: Attenuate. Margin:             Entire; not undulate. Aspect: About 35° to 45° from             vertical. Texture and luster, upper surface: Smooth,             glabrous; slightly velvety; matte. Texture and luster, lower             surface: Smooth, glabrous; slightly glossy. Color: When             opening, upper surface: Close to 164C, 167B and N167C. When             opening, lower surface: Close to 162B. Fully opened, upper             surface: Close to 24C; towards the apex, slightly tinged             with close to 168D and 171D; towards the base, close to 22B             and 22C; venation, similar to lamina colors; color does not             change with subsequent development. Fully opened, lower             surface: Close to 162C; venation, close to 162B; color does             not change with subsequent development.         -   Disc florets.—Quantity and arrangement: About 190 at the             center of the receptacle. Length: About 2.3 cm. Diameter:             About 4 mm. Shape: Lower 75% fused into a tube; upper 25%             free. Apex: Bluntly acute. Margin, free-part: Entire.             Texture and luster, inner surface: Smooth, glabrous; matte.             Texture and luster, outer surface: Smooth, glabrous;             slightly glossy. Color, when opening, inner and outer             surfaces: Close to 1B; distally, close to 1A. Color, fully             opened, inner surface: Close to 20A; towards the base, close             to 19A. Color, fully opened, outer surface: Close to 160B;             towards the apex, close to 160A.         -   Involucral bracts.—Quantity and arrangement: About 24             arranged in about two whorls. Length: About 1 cm. Width:             About 4 mm. Shape: Ovate to narrowly ovate. Apex: Obtuse.             Base: Cuneate. Margin: Entire. Texture and luster, upper             surface: Smooth, glabrous; glossy. Texture and luster, lower             surface: Moderately pubescent; matte. Color, upper surface:             Close to 143A and 143B; lateral margins, translucent and             close to 157D and apical margins tinged with close to 199B             to 199C. Color, lower surface: Close to 143A; lateral             margins, translucent and close to 157D and apical margins             tinged with close to 199B to 199C.         -   Peduncles.—Length, terminal peduncle: About 3.8 cm.             Diameter, terminal peduncle: About 4 mm. Length, third             peduncle: About 4.9 cm. Diameter, third peduncle: About             3.5 mm. Strength: Strong. Aspect, terminal peduncle:             Upright. Aspect, third peduncle: About 40° from the             flowering stein axis. Texture and luster: Densely pubescent;             slightly glossy. Color: Close to 138A.         -   Reproductive organs.—Androecium: Present on disc florets             only. Quantity: About two per floret. Filament length: About             2 mm. Filament color: Close to 145B. Anther size: About 0.4             mm by 1 mm. Anther shape: Narrowly oblong. Anther color:             Close to 13A. Pollen amount: None observed. Gynoecium:             Present on both ray and disc florets. Quantity: One per             floret. Pistil length: About 6 mm. Style length: About             5.5 mm. Style color: Close to 145C. Stigma diameter: About             1 mm. Stigma shape: Cleft to three-parted, decurrent. Stigma             color: Close to 153D. Ovary color: Close to 157A.         -   Seeds and fruits.—To date, seed and fruit production have             not been observed on plants of the new Chrysanthemum. -   Pathogen & pest resistance: Plants of the new Chrysanthemum have     been observed to be resistant to Fusarium Wilt (Fusarium oxysporum     spp. chrysanthemi (strain FoNL1)). To date, plants of the new     Chrysanthemum have not been observed to be resistant to pests and     other pathogens common to Chrysanthemum plants grown under     commercial conditions. -   Temperature tolerance: Plants of the new Chrysanthemum have been     observed to tolerate temperatures ranging from about −12° C. to     35° C. and to be suitable for USDA Hardiness Zones 8 to 10. 

It is claimed:
 1. A new and distinct Chrysanthemum plant named ‘DLFHOLA6’ as illustrated and described. 